下列命题中,真命题是( )
A.两条直线被第三条直线所截,同位角相等; |
B.两边及其中一边的对角对应相等的两个三角形全等; |
C.两点之间线段最短; |
D.三角形的一个外角等于两个内角的和. |
更新时间:2022-11-14 22:02:54
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真题
【推荐1】如图,已知a∥b,∠1=40°,则∠2=
![](https://img.xkw.com/dksih/QBM/2013/9/11/1573681247010816/1573681252655104/STEM/ce3cc6f465784ca4a5a94d8be7d5accb.png)
![](https://img.xkw.com/dksih/QBM/2013/9/11/1573681247010816/1573681252655104/STEM/ce3cc6f465784ca4a5a94d8be7d5accb.png)
A.140° | B.120° | C.40° | D.50° |
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【推荐2】如图,AB∥CD,BE交CD于点F,∠B=48°,∠E=20°,则∠D的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/19/22a40749-3608-458d-8caa-f8d4cc0f7355.png?resizew=169)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/19/22a40749-3608-458d-8caa-f8d4cc0f7355.png?resizew=169)
A.20° | B.28° | C.48° | D.68° |
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【推荐1】如图,△ABC的外角∠CAE为115°,∠C=80°, 则∠B的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/13/3ede3175-feb1-4bd5-b7b8-ca92994be3a9.png?resizew=260)
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A.55° | B.45° | C.35° | D.30° |
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【推荐2】将一副直角三角板如图放置,使含
角的三角板的短直角边和含
角的三角板的一条直角边对齐,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,
平分
,
,连接
、
,并延长交
、
于
、
点,则图中全等的三角形有( )对.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146a63bac5ecd239f2696801e8eaa0b2.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/28/73fd2f90-f157-4436-8c01-c317c8568498.png?resizew=118)
A.3对 | B.4对 | C.5对 | D.6对 |
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【推荐2】如图,
,
于点
,
于点
,且
,点
从
向
运动,每分钟走
,点
从
向
运动,每分钟走
,
、
两点同时出发,运动( )分钟后,
与
全等.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233df632f66ab9266b348076ba72d253.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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A.2 | B.3 | C.4 | D.8 |
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名校
【推荐1】下列命题中的假命题是( )
A.一组邻边相等的平行四边形是菱形 |
B.一组邻边相等的矩形是正方形 |
C.一组对边平行且相等的四边形是平行四边形 |
D.一组对边相等且有一个角是直角的四边形是矩形 |
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【推荐2】下列是假命题的是( )
A.两点之间,线段最短 |
B.过一点有且只有一条直线与已知直线垂直 |
C.直角三角形的两个锐角互余 |
D.两条直线被第三条直线所截,同位角相等 |
您最近一年使用:0次